Style 371 Step Drills for Cap Screw Clearance
Style 371 Step Drills for Cap Screw Clearance |
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Style 371. For Drilling and Counterboring Cap Screw Clearance Holes.
High Speed Steel.
Jobbers length (except 1/2 and 5/8, which are shorter).
Easily resharpened. Does 2 jobs in a single pass.
Made in USA.
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Quantity
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Price
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Model
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Description
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Minor Diameter |
Major Diameter |
Step Length |
Flute Length |
Overall Length |
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$12.80 | DRST371-4
| Step Drill 371, HSS, for Counterbored Capscrew Clearance: #4, 1009-0003 | 0.136 |
7/32 |
3/8 |
2 1/2 |
3 3/4 |
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$13.50 | DRST371-5
| Step Drill 371, HSS, for Counterbored Capscrew Clearance: #5, 1009-0004 | 0.141 |
No. 1 (.228") |
3/8 |
2 5/8 |
3 7/8 |
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$14.30 | DRST371-6
| Step Drill 371, HSS, for Counterbored Capscrew Clearance: #6, 1009-0005 | 0.150 |
1/4 |
1/2 |
2 3/4 |
4 |
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$16.35 | DRST371-8
| Step Drill 371, HSS, for Counterbored Capscrew Clearance: #8, 1009-0010 | 0.178 |
L (.290") |
1/2 |
2 15/16 |
4 1/4 |
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$17.90 | DRST371-10
| Step Drill 371, HSS, for Counterbored Capscrew Clearance: #10, 1009-0015 | 0.204 |
Q (.332") |
5/8 |
3 7/16 |
4 3/4 |
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$20.65 | DRST371-1/4
| Step Drill 371, HSS, for Counterbored Capscrew Clearance: 1/4", 1009-0020 | 9/32 |
13/32 |
11/16 |
3 7/8 |
5 1/4 |
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$27.40 | DRST371-5/16
| Step Drill 371, HSS, for Counterbored Capscrew Clearance: 5/16", 1009-0025 | 11/32 |
1/2 |
3/4 |
4 1/2 |
6 |
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$43.80 | DRST371-3/8
| Step Drill 371, HSS, for Counterbored Capscrew Clearance: 3/8", 1009-0030 | 13/32 |
19/32 |
7/8 |
5 3/16 |
7 1/8 |
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$52.30 | DRST371-7/16
| Step Drill 371, HSS, for Counterbored Capscrew Clearance: 7/16", 1009-0031 | 15/32 |
11/16 |
1 |
5 5/8 |
7 5/8 |
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$72.10 | DRST371-1/2
| Step Drill 371, HSS, for Counterbored Capscrew Clearance: 1/2", 1009-0032 | 17/32 |
25/32 |
1 |
3 1/4 |
5 1/8 |
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$96.30 | DRST371-5/8
| Step Drill 371, HSS, for Counterbored Capscrew Clearance: 5/8", 1009-0033 | 21/32 |
31/32 |
1 |
3 7/8 |
5 7/8 |
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